Method of manufacturing extensible slide supports for wardrobe trunks



A; PETRIE, METHOD OF MANUFACTURING EXTENSIBLE SLIDE SUPPORT S FUR WARDROBE TRUNKS.

APPLICATION FILED MAY 24, 191$.

Pate ntedlan. 3,1922.

1 R0 V 1 v 9 (I m 3 2 UNITED Aueus'r PETRIE, or wris'r- ALLIS, WISCONSINLASISIGNOR TO MILWAUKEE STAMPING- oo., or WEST ALLIS, WISCONSIN,

METHOD or mnnur'Ac'runme EXTENSIBLE sm'nn surron'rs ron WARDROBE rn'unns.

PATENT EFIE A; CORPORATION OF WISCONSIN. 7

To all whom z'zf may concern: I I I Be it known that I, Aueu's'r Pn'riun, a

citizen of the United States, residing at WVest Allis, county of Milwaukee, and State of Wisconsin, have invented new and useful Improvements in Methods of Manufacturing Extensible Slide Supports for Wardrobe Trunks, of which the followingis a speci fication.

My invention relates to improvements in methods of manufacturing extensible slide supports for wardrobe trunks, clothes presses, and storage chambers of various kind, in which sets of slides are mounted upon telescoping su orts adapted to be ex tended from within the chamber when the dooror lid is open, whereby the slides may be drawn out along said su ports to separate and expose clothing, orother articles carried thereby, or pushed into the chamber to carry the stored article's-therein preparatory to closing the door'o'r' lid; The slide ordinarily travelin frictional contact with their supports, and rest loosely thereon so that they can be removed at pleasure.

The object ofthisinvention is" to provide an improved method of manufacturing the telescopic slide supports, whereby the cost of manufacture may be reduced to a minimum, the procedure expedited, and a structurep'roduced along which the slides may travel in frictional contact the supports, and from one associated member to the next, smoothly and without encountering obstructions or projections calculated to mater'ially' increase the resistance to the sliding movement.

My process will now be described with reference to the accompanying" drawings, in which- Figures, 1, 2, and 3 are plan iews showing respectively three die forms vinto which blanks may be cut from sheet metal preparatory to constructing the outer or tubular member of my improved slide'sup'por't.

Figure 4- is a cross sectional view of a press, indicating suitable meansfor shaping theblank'to form atubular slide lnember,

Figure 5 is a horizontals'e'ctionalview of a wardrobe trunk, showing a fragment] of the-lid, and also showing a: pair of my cont pleted slide supporting member'sin position foruse, and with the tubular slide members partly extended.

Specification of Letters Patent.

Application filed May 24,

I Patented J an. 3, 1922. 1919. Serial No. 299,477.

Figure 7 is a sectional view, drawn online 7+7 of Figure 6.

Figure 8 is a detail sectional on line 88' of Figure 6.

Figure '9 is a perspective view of a portion of the assembled structure shown in Figure 6. v

7 Like parts are identified by the same reference characters throughout the several views. I

Ihis' application is a companion application, and is a continuation in part of my former application for Letters .Patentfor Wardrobe trunks, filed February 17131.1,1917, Serial No. 149,190, and renewed November 29, 1920, Serial Number 427,211.

In thepractice of my improved process,

Ifirst take a pieceof sheet metal of the desired gage or thickness, and cut therefrom a blank having a generally rectangular form, but having one end provided with an edge margin which is oblique to the. side margins of the blank, or which follows a line extending obliquely from such side margins. For example, in Figure 1, the blank 1 has side margins 2 and 3, which are parallel, and one end margin 4 which is at right angles to the side margins, but. the other end of the blank is provided with a V-shaped recess, thereby forming two edge margins View, drawn- 5 and 6 which extend along lines oblique to the side margins 2 and .3 of the blank; ,although preferably the oblique edges 5' and 6 do not intersect the side margins, this end of the blank having portions 7 which are also at right angles to the side'ma1'gins'2 and 3.

In Figure 2, I have illustrated a similar blank 9, having parallel side margins 10 and 11, and one end margin 12 at right angles oblique edge 13.

r In Figure 3, the blank 15.is of a generally rectangular form, except at one. end where thecorners are cut away to form oblique margins17 and 18 at one end of the blank,

these margins converging toward the cen-' tr'al portion of the blank in a manner to form a projecting point,

After cutting or preparing a generally rectangular blank with an obliqueedge margin at one end, I then roll or press its longitudinally. extending central portion into cylindrical or tubular form, the side marglns being brought into proximity, and into posltions parallel with each other, but prefer ably turned outwardly until their flat faces portion registering with the concave or semicylindrical die cavity 25, and then forcing it into the cavity by subjecting it to the pressure of a punch, having a substantially cylindrical head 26,and an upwardly projecting wing flange 27 the margins of the blank being then pressed into conformity, with the upper surfaces of the punch. head, and with the sides of the wing flange, by horizontally moving press blocks 28, closing in upon the flange from the respective sides.

Assembly.

The squared end of the blank is then provided with a'suitable head piece 30, which may comprise a narrow strip of sheet'metal bent in the arc of a larger circle thanthat which follows the wall of the blank, and the end portions of this head piece may be secured to the flanges 21 and 22 of the shaped blank by welding or riveting-the headpiece extremities to these flanges at 31. The blank is then mounted upon arod 35,'which fits within its cylindrically curved portions, and it is so positioned upon the rod that one or more of the oblique edge margins 5, 6, or 13 will. extend from the upper side of the rod along a helical line downwardly and in the direction of. the exterior, orendlportion, of therod in a position to form an inclined skid-way, along which a slide supported on the rod may traveljtoa position of support upon the tubular member formed from the blank, as above described The parts lare held in this positionby a supporting bracket 36, which is secured tot-he rod, and projects outwardly through the slot between the flanges 21 and 22. 'lhisbracket Ipreferably utilize to connect the rod to one wallof the trunk or chamber to which slide support is applied, this connection being illustrated at 38 in Figure 8. V i 4 1 preferably support the exterior endof the rod 35 by securing it directly to the rim wall of the chamber, as shown at 40 in Figures 5,.6,.and 7. A pair of slide supports thus secured to the wall of a trunk or other chamber may be used to support a series of slides 41 "inipositions to travel "along their uppersurf'aces, and upon the hel cally 1nclined skidays formed by the obllquemar- It will beobserved- 'in Figure 5, which shows aset of slide ,supportsformed from blanks like those'illustrated in Fig. 1, that the tubular portion of the blank has what might be termed a downwardly -and* inwardly beveled inner end, the edge margins diverging from the upper side along oppositely curving helical lines on the respectlve side ofthe rod 35. It is not material, however, whether the oblique margins follow two helical lines or only one, a

While I have emphasized the importance of providing the blank with an oblique edge at one end for the purpose of providing an inclined Skid-,WELY for, theyslide, I do not limit the scope of my invention to necessarily include this 'stepas an absolutely essential part. of my p-rocess, an extremely important portion of my inventionbeing in the simple and inexpensive means .whereby I form a fiat blank of sheet metal and convert itinto a tube having a-slot along one side,

flanked by outwardly projecting flanges.

, V Y, By, utilizing across pin 42 to connect the marginal flanges ,of the tubular member with each other at the inner side of the bracket 36',, Ilmay not only reinforce these flanges fron each other, but I'also provide astop to preventthe tubularslide member :tromrbeing wholly withdrawnffrom the rod.

, I elaimaa v 1. The process of making enclosing tubular members for slide supports, consisting in forming generally rectangular sheet metal blank, providing the samewith an oblique end margin, and pressing a the central portion of theblank into tubular form about a longitudinallyextending axis and in a direction ,to cause theoblique' end: margin to follow a helical line leading to a point between the ends of the tubular member on thefoppositejside thereof from that toward which the side; margins of the blank are pressed, whereby said oblique margin may facilitatefmovementof other articles into a supported position upon thetube 2. The process of making enclosing. tu'bular members for ,slidesupports, consisting in forming a generally rectangular sheet metal blank, providingthe samev with an oblique endl margin, pressing the, central portion of the'blankintoltubular form about a longitudinally extending, axis,.-and also pressing the side margins, of the blank I outwardly in parallel planes, and. in spaced relation. to each other, Said; tubular member being stantially horizontal and I, with said blank margin leading to a point in its upper surfaceto facilitate the movement of supported articles over the end of the member,

, I V adapted tobe, mounted with its axis sub- 3. The process of making tubular members for lide supports, which consists in providing an elongated steel sheet metal blank with an oblique end margin, and bend- 5 ing the blank into tubular form, said blank being adapted to be telescoped upon a rod and to be supported substantially horizontally in a position to cause said oblique margin to cross said horizontal plane which in- 10 cludes a portion of the tubular member between its axis and its upper surface to facilitate the movement of supported slides from the rod to the tubular member.

In testimony whereof I afiix my signature in the presence of two witnesses.

AUGUST PETRIE.

WVitnesses:

GRACE A. SANNER, IRENE W. GEVAANT. 

